Brake



Aug. 7, 1935. V E. v. TAYLOR ,01

BRAKE Original Filed Jan. 18, 1930 IN V EN TOR.

EUGENE \l. TAYLOR ATTORNEY Q -'Eugene...qfraylor;tdhica r s fi gto Ben- 1 dixBr ke Compan uth c di e a o p zt; ration of Illinois a Original i1imion January 13,1930, Serial No. x l v 421 64 1; Divided-and'this application March r '26, 1934;:SerialNo. 714,296 v p I p5 1" I 10'Claim's. (oiiss zs) e a This invention relates to bralkes,-and is illusof the illustrative embodiment shown in the actratedas'embodiedin-an internal-expanding autocompa y w in which: mobile brake ofthetypein whichbne end-of the Fig r 1 is a v l section through h k fric'tionineans anchors when t'he drum is turning 'J' S s eg headrof S w -5 inonedirectionandthe otherendanchors when the friction-means in side elevation; and" 625 the drum is turn-ing in the other directioni An object of the invention'isto provide asimple and effective' centering device for the part of ithe' 'fr'iction means opposite the brake "anchorage, when-fusedinthe above typeof brake,which pref- -"-erably l-)' c'entersgthef-riction means When the bra ke isreleased;{(2') guides the "friction means circumferentially-of the brake- (3)' prevents lateralmovementof"the friction meanSQ and (4) -p0 =sitionswadjustablyyif ds'ir'e'd) the-friction means radiallyof "the brake' when the 'brake is released. "Many of the advantages of the invention may be secured without utilizing all four of these func- -tions, but an important-feature relates to the a del 20,

sign and arran gement of ;a single very simple and I --comp'act device 'Zfor performing at least some of these functions which usually are carriedout by I several devicesg y In the illustrated arrangementa support adja- -centthe friction means (shown-as a bracket car ffiotiohmeans :12. These toggles act, when ried by the:backing-p1'ate) has s'ecure'd thereto a leaf spring device whose ends are formed 'inloops "and securedto' the frictionmeans'so that iturges 'the fric'tion means-radially -inward away from w the'dr-umin .the mannerof a returnspring, andzat 1 "the sametime centersithe friction means-circum the. Jbra'ke when'ithe: brake i's.-1relor by some l 'o'ther springadevice, I 'preferito mount on the support (for example by adiustablytthreading 'it therethrough) astop whichodeterminesthe rel'eased position 1,;of :rthe 'ifri'ction rmeansz-radially 1 140 of the brake. r lPreferably'athisestop and :lthegfriction means haveiinterengagingparts whichguide :5

the friction neans circumferentially of the brake while-preventing-it from moving laterally.

As shown, the stop has a guide at its end projecting into a slot ina part carried by the friction means, and a shoulderflwhich is engaged by the inner face of said part when the brake is released,

to determine its radial position. I prefer to arrange this stop substantially midway between the ends of the above-described spring.

The above and other objects and features of the invention, including various novel combinations of parts and desirable particular constructions, V

will be apparent from the following description sli'a-ped anchor --l8 carried by a backing plate or? I TWhether the support andithe friction means are lvyieldi'ngly connectedbyihe :describ'ed leaf spring h 7 tion means [2, across the brake from thelanchor age 18, a structure-such l-zas a "stamping or other part flisecured (a'saby screws ':48) at' its ofl'sete'nds Figure 2 is a partial radial section, on ther'line -2'2 of Figure '1', showing the-mounting of-the adjustable stop in the support. g 7' a a The illustrated brake includes a rotat bledrum 10, {within which is-arrang'edthe brake frictioncq0 with V-shaped notches embracing a diamond-' other support 20 arranged at the opn side of tically arranged toggle including links-22 andxfl 'angles thereto;

j l-he vertica12 toggle'=-2 2' 24 is connectedito the knuckles of upp'er an'dlowertoggles I including nk's 36 and-38 connected at their ends to the,

straightened-to apply 1 the brake? against theiirewsi-stan'ce ofreturn springs 42 and,

[The above-described applying and. anchorage means is "more fully described, Landis claimed, f m y application No. 421',64,1,"filed January '18; 1930,

ofs'whichlhe present'lapplication .is a division.

' Accordingto thpresent invention onexspeclfic embodiment of which; isiillustratedfin the drawing and described below, there is carriediby the frictoEtheJinner face of the friction meansilz. @The serrewsaal mayalso bentili'zedcto clamp'theretum bent loops .or so ashaped .ends -i:5'0;:and 152 :foflrleaf s'pringim'eans' serving to center the :frictionmeans,

andialso toi urge ii'ti'radially linward'iswhen the brake is released.

The leaf spring means 50-52 may be in the form of a single leaf spring, looped at its ends, and centrally secured to a support such'as a bracket 54 bolted or otherwise rigidly secured to the backing plate 20.

The bracket 54 is shown formed at its central portion with a threaded opening adjustably re ceiving a stop '55, which may conveniently be a hex-headed threaded bolt provided with a lock nut'59. 1

The lower end of the stop 56 is preferably formed the looped leaf springs 50 and 52 distorting ac v cordingly. At the same time, as the band z expands, the part opposite the brack'etf54 moves radially outward against th'drum, away from I:

the shoulder on the stop 56.

When the brake is thereafter released, thesprings 50 and 52 center the slot 58.upon the .projection at the end of stop 56, and at the same time i urge the inner face of the part 46 against the shoulder on the part 56.- The clearanceof the brake lining may readily be adjusted by turning .the stop 56, after looseningathe lock-nut 59.;

;".Whileone illustrative embodiment has been de- '25 the scope of ,theinventionto that particular emscribed in detail, itis not my intention to limit bodiment, or otherwisejthan by the terms of the appended claims.

port, and leaf spring means secured to said sup- -1.;A brake having friction means, a'fixed sup- ;port and having loops; at opposite sides 'of the support which are securedat their ends. to the friction means. Y a g 35 ,2. A brakelhaving friction means,; a fixeds lpportandaleaf spring secured at its center to said support and having integral loops at opposite sides a i of thesupport which are "secured at .theinends J'to the friction means.

. -13 brake having friction m eansia fixedlsupport, leaf spring means securedto'said support and having loops at opposite sides'of thesupport :which'aresecured at their ends to the friction :-means,i and interengaging means on;,the support :and the friction means andguiding, the friction :means to permit it to move freely circumferen- ,tially but preventing it from moving laterally.

4. A brake having friction means, a fixed sup- ;=;port,va :leaf .spring secured' at its center to said tisuppo'rt and having integral loops at opposite sides .1ofthesupport-which are secured at-their'ends to the friction "means, and interen aeineumeans .ing;in:-the other :direction, applying means acting onuthe'suppo'rtand the friction means and guid J :ing'thefriction'means to, permitit to move freely -ulaterallyl. .1,

i':port,;1eaf .spring means secured to: said support circumferentially but preventing ,itfrom moving 5. A brakehaving friction'means, afiired supetfa'nd havingloops at opposite sides of thesupport which are' secure'd at their, ends to ,thG'ffliCtiOIl 'I means, and} interengaging means on the support andxthe friction means and'guiding thefriction imeans to permit it to move freely-circumferen- ,;secured to the friction means.

with a shoulder engaging-the inner face of thetially but preventing it from moving laterally, said interengaging means also serving as a stop determining the radial position of the adjacent portion ofv the friction means when the brake is releasedl 6. A brake having friction means, a fixed support, a leaf spring secured "at its center to said support and having integral loops at opposite sides of the support which are secured at their ends to the friction means, and interengaging means .on the support and the friction means and guiding the friction means to permit it to move freely circumferentiallyrbutpreventing it from moving laterally, said interengaging means also serving as a stop determining the radial position of the adjacent portion of the friction means when the bra kef is released;

75A brake'having friction means, an adjacent 1 pp0rt, a part carried by the friction meansopposite the support and formed with an elongated slot, aistopadjustably carried by the support and .,hav ing ;a;guide part extending into the slot and having a shoulderengageable with the inner face of saidgpart to determine its released position raidiallypfthe brake, and a' leaf spring centrally;

secured=to said support andhaving looped ends 8. "A brake having a drum, friction means havingian anchorage and engaging the anchorage at one'endwhen thedrumis turning in onedi--.: rectionand at the other end when the drum is turning, in. the other 1 direction, applying means acting on said ,ends'adj acentthe anchorage, and a leaf, spring across the brake from said anchorage having itscenter fixed and having its ends formed 13 in loopsand securedtothe friction means.

9. Abrakehaving a drum, friction means havi .e; a a qh ra e and en n the n ora atone endwhen the drum is turning in one direction' and at-the other end when the drum is turn-r mg in theother direction, applying means acting 501). said. ends adj acent the anchorage, a leaf spring across the brake from'said anchorage having its ;;center;fixed and havingits endsformed in loops andsecured to the frictionmeans, and a stop en gageable withthe frictionmeans between the ends vofsaid spring.

10. A brakehaving friction means having an anchorage andiengaging the anchorage at one end when the drum is turning in onedirection, and atthe other end when thedrum is turnon said ends adj acent the anchorage, a leaf spring .across the .brakefrjom said anchorage having its I f VHTAYLOR. 

